| Brize Company LP | | 2017 |
| Brizz International LP | | 2015 |
| BRK Bensell Special Limited Partner, L.P. | | 2015 |
| BRO Agriculture Ltd | Agriculture & fishing | 2021 |
| Broad Street Infrastructure Advisors AIV (II) UK Limited | Administrative & support | 2020 |
| Broad Street Danish Credit Partners, L.P. | | 2016 |
| Broad Street Loan Partners 2013 Advisors II, LLP | | 2014 |
| Broadband Cloud Solutions Limited | Information & communication | 2002 |
| Broadcast Commercial LP | | 2016 |
| Broadcom International L.P. | | 2009 |
| Broadenbase Ltd | Professional & scientific | 2020 |
| Broadfield Distribution L.P. | | 2014 |
| Broadfield Financial L.P. | | 2011 |
| Broadfield Investments L.P. | | 2012 |
| Broadfield Management Solutions L.P. | | 2014 |
| Broadfield Technology L.P. | | 2011 |
| Broadlin Limited | Hospitality | 2018 |
| Broadshore Offshore Wind Farm Limited | Energy | 2022 |
| Broadstone Network Ltd | Information & communication | 2020 |
| Broadsword Private Capital Limited | Financial services | 2019 |
| Broadview Capital Ventures L.P. | | 2011 |
| Broadview Forestry Investments LP | | 2019 |
| Broadview Forestry Ltd | Agriculture & fishing | 2019 |
| Broadway Alliance L.P. | | 2011 |
| Broadway Distribution L.P. | | 2011 |
| Broadway SLP | | 2001 |
| Broadway Systems L.P. | | 2009 |
| Broadwell Impex LP | | 2012 |
| Broc Consultancy Ltd | Professional & scientific | 2022 |
| Brock Renovations Ltd | Construction | 2022 |
| Brockhaus Private Equity III (Scottish) L.P. | | 2013 |
| Brockhill Solutions L.P. | | 2013 |
| Brockton Capital II a (Scots) L.P. | | 2011 |
| Brockwell Energy Limited | Other services | 2017 |
| Brockwell Energy Services Limited | Administrative & support | 2018 |
| Brockwell GAS Holdings Limited | Energy | 2020 |
| Brockwell GAS Limited | Energy | 2020 |
| Brockwell Wind Developments Limited | Energy | 2022 |
| Brockwood Hall Title Limited | Professional & scientific | 1995 |
| Broddy Corp LP | | 2017 |
| Brodie Fiscal Ltd | Professional & scientific | 2025 |
| Brodies & Co. (Trustees) Limited | Professional & scientific | 1961 |
| Brodies LLP | | 2004 |
| Brodies Management Services Limited | Administrative & support | 2010 |
| Brodies Middle East LLP | | 2022 |
| Brodies Nominees Limited | Administrative & support | 2009 |
| Brodies Pension Trustees Limited | Professional & scientific | 2013 |
| Brodies Secretarial Services Limited | Professional & scientific | 2000 |
| Brog Ltd | Transport & logistics | 2021 |
| Broider Sales LP | | 2011 |
| Brokaw Steel LP | | 2016 |
| Broke Promotions Ltd | Hospitality | 2017 |
| Broken Arrow Investment Partners LP | | 2011 |
| Broken Blonde Limited | Information & communication | 2012 |
| Broken Bricks Logic Ltd | Information & communication | 2010 |
| Broken Cross Wind Farm Limited | Other services | 2017 |
| Brokkr Designs Ltd | Professional & scientific | 2023 |
| Brokyl Ltd | Information & communication | 2024 |
| Broman Trading LP | | 2019 |
| Brome Enterprises LP | | 2016 |
| Bromford Management LP | | 2016 |
| Bromley Invest LP | | 2017 |
| Bromtex LP | | 2026 |
| Brond Universal LP | | 2013 |
| Bronvill LP | | 2015 |
| Bronzewire Trade LP | | 2013 |
| Brook Agency L.P. | | 2013 |
| Brook Commercial Services L.P. | | 2015 |
| Brook East SP | | 2000 |
| Brook Expert LP | | 2015 |
| Brook Green (Scotland) Limited | Administrative & support | 2022 |
| Brook Investment Management Ltd | Extraterritorial | 2010 |
| Brook Investments L.P. | | 2012 |
| Brook Opportunities LP | | 2015 |
| Brook Scotland | Health & social care | 1995 |
| Brook Structure LP | | 2015 |
| Brook Technologies LP | | 2015 |
| Brookdale Trade Group LP | | 2015 |
| Brooke (Scotland) Investments | Administrative & support | 2025 |
| Brooke Tait Hair Ltd | Other services | 2018 |
| Brookes Geekie Bloodstock Ltd | Agriculture & fishing | 2023 |
| Brookfield Capital LP | | 2013 |
| Brookfield Corporation L.P. | | 2011 |
| Brookfield Metal Recycling Ltd. | Wholesale & retail | 2009 |
| Brookhall Developments L.P. | | 2009 |
| Brookhill Solutions LP | | 2013 |
| Brookland Investments L.P. | | 2014 |
| Brooklyn Artists Ltd | Other services | 2025 |
| Brooklyn Kitchens Limited | Wholesale & retail | 2015 |
| Brooklyn PIE Ltd | Hospitality | 2024 |
| Brookmanor Associates | | 1991 |
| Brookrow Line LP | | 2017 |
| Brookside Industry LP | | 2014 |
| Brooktrade Agents L.P. | | 2015 |
| Brookvale Associates L.P. | | 2011 |
| Brookvale Enterprises L.P. | | 2008 |
| Brookvale Investments L.P. | | 2011 |
| Brookvale Real Estate L.P. | | 2010 |
| Brookvale Services L.P. | | 2011 |
| Brookwyn Ventures LP | | 2014 |